CN110735637A - carbon dioxide deflagration pulse type pressurization rock breaking device and technological method - Google Patents
carbon dioxide deflagration pulse type pressurization rock breaking device and technological method Download PDFInfo
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- CN110735637A CN110735637A CN201911021742.1A CN201911021742A CN110735637A CN 110735637 A CN110735637 A CN 110735637A CN 201911021742 A CN201911021742 A CN 201911021742A CN 110735637 A CN110735637 A CN 110735637A
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- 238000004200 deflagration Methods 0.000 title claims abstract description 115
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 84
- 239000011435 rock Substances 0.000 title claims abstract description 47
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 42
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 35
- 239000002994 raw material Substances 0.000 claims abstract description 109
- 238000003860 storage Methods 0.000 claims abstract description 101
- 230000008569 process Effects 0.000 claims abstract description 15
- 230000001052 transient effect Effects 0.000 claims abstract description 13
- 238000005474 detonation Methods 0.000 claims description 35
- 238000004080 punching Methods 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 10
- 238000000227 grinding Methods 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 3
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 230000000977 initiatory effect Effects 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 230000009172 bursting Effects 0.000 claims 1
- 230000008859 change Effects 0.000 abstract description 5
- 238000005422 blasting Methods 0.000 description 15
- 239000002360 explosive Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 7
- 238000005065 mining Methods 0.000 description 6
- 238000009412 basement excavation Methods 0.000 description 4
- 235000011089 carbon dioxide Nutrition 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000001502 supplementing effect Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 229910000640 Fe alloy Inorganic materials 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920001220 nitrocellulos Polymers 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C37/00—Other methods or devices for dislodging with or without loading
- E21C37/06—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole
- E21C37/12—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole by injecting into the borehole a liquid, either initially at high pressure or subsequently subjected to high pressure, e.g. by pulses, by explosive cartridges acting on the liquid
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C37/00—Other methods or devices for dislodging with or without loading
- E21C37/06—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole
- E21C37/14—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole by compressed air; by gas blast; by gasifying liquids
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- Geology (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses an carbon dioxide deflagration pulse type pressurization rock breaking device and a process method, the device comprises a raw material storage bin and a deflagration bin arranged below the raw material storage bin, an opening is formed in the end of the deflagration bin and connected with a pressure-resistant pipeline leading to a deflagration position, an exhaust pipeline is arranged in the middle of the deflagration bin and connected to an exhaust device, the exhaust device is connected to a high-pressure pump through a pipeline , the high-pressure pump is connected with the raw material storage bin through a pipeline II, a storage bin switch valve is arranged in the raw material storage bin, the lower end of the storage bin switch valve penetrates through a feeding channel and is located in the deflagration bin, an impeller is arranged in the deflagration bin corresponding to the lower end, an ignition device is further arranged in the deflagration bin, and the deflagration raw material is subjected to transient high-pressure high-temperature gas generated after expansion phase change to.
Description
Technical Field
The invention relates to the technical field of blasting devices and methods, in particular to a detonation pulse type pressure-boosting rock breaking device and a process method for types of carbon dioxide.
Background
Blasting is often needed in municipal traffic engineering such as mining and stone mining, foundation pit excavation, tunnel and underground space construction, hard rock/boulder safe blasting demolition, pipeline blockage dredging and the like, blasting is used for fracturing, the blasting fracturing method has the characteristics of high efficiency, low cost and the like, and is widely applied to rock excavation of mining engineering, underground traffic engineering, water conservancy and hydropower engineering and the like, however, strong shock waves generated in the blasting operation process can cause disturbance and damage of nearby rock masses and vibration damage of the rock masses, so that fixed influences on the stability of the engineering rock masses and the safety of the surrounding environment can be caused, in order to improve the operation safety and reduce the strong shock disturbance, a relatively ideal rock breaking effect is achieved, a novel rock breaking technology for fracturing the rock masses by utilizing high-energy gas expansion work, especially CO is generated2The phase change expansion fracturing technology is receiving attention from in the fields of mining, tunneling, municipal transportation and the like.
High-energy gas fracturing technology appeared in the united states at the earliest 60 s in the 19 th century, which is kinds of rock mass fractured by using shock waves and explosive gas generated by burning explosive in a short time, wherein high explosive such as TNT is adopted to perform explosion fracturing on a reservoir at the beginning, but the high explosive is gradually eliminated due to great damage to a shaft and a stratum caused by explosion, and the high-energy gas fracturing is performed by using deflagration of explosive such as nitrocotton instead of the high explosive2The phase change expansion cracking device belongs to kinds of high-energy gas fracturing technologies, and was developed by researchers in Europe and America at first2As a medium for the above-mentioned processes,mixing liquid CO2And a heating tube (explosive substance) are enclosed in a closed container. The heating tube is excited to generate high-temperature and liquid CO of over 800 ℃ within tens of milliseconds2The pressure is increased sharply, and high-pressure gas is released rapidly, so that the rock mass is cracked or broken. In CO2However, no matter the controlled blasting technology or the high-energy gas fracturing technology, I, II civil explosives are used at present to different degrees (the heating powder used by the current carbon dioxide phase change expansion fracturing technology belongs to the II civil explosives), and the problems of safety and impact disturbance are not fundamentally solved, so that high-energy gas fracturing methods with high safety and easiness in operation need to be developed.
Disclosure of Invention
The invention aims to provide carbon dioxide deflagration pulse type pressurization rock breaking devices and process methods which are high in safety and easy to operate, aiming at the problems in the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that:
carbon dioxide deflagration pulse type pressurization rock breaking devices comprise a raw material storage bin and a deflagration bin arranged below the raw material storage bin, wherein the end of the deflagration bin is opened and connected with a pressure-resistant pipeline leading to a blasting position, and an exhaust pipeline is arranged in the middle of the deflagration bin and connected to an exhaust device which is connected with a high-pressure pump through a pipeline and connected with the raw material storage bin through a pipeline II;
the raw material storage bin is abutted with the deflagration bin and is provided with a feeding channel penetrating through the wall of the bin, a storage bin switch valve is arranged in the raw material storage bin, the lower end part of the storage bin switch valve penetrates through the feeding channel and is located in the deflagration bin, an impeller is arranged in the deflagration bin corresponding to the lower end part and is connected with a motor through a rotating shaft, the motor is arranged outside the deflagration bin, and an ignition device is further arranged in the deflagration bin.
The carbon dioxide deflagration pulse type pressurization rock breaking device utilizes high-pressure high-temperature gas generated by transient state after the deflagration raw material expands and changes phase to impact the blasted part to realize fracturing.
The raw material storage bin is used for storing deflagration raw materials, the circulating feeding and supplementing of the raw materials are achieved through control of a valve , deflagration is achieved in the deflagration bin, high pressure is borne, after deflagration each time, residual gas enters the raw material storage bin through an exhaust device through a high-pressure pump again, the pressure in the raw material storage bin is kept, and the raw materials are pressed into the deflagration bin after a valve is opened conveniently.
The motor can drive the impeller rotates to realize that the circulation is opened and is closed storage bin switch valve , impeller pivoted frequency and dwell time and detonation frequency and detonation time phase-match realize that detonation raw materials pulse punching press many times replaces single heavy dose punching press to reach better fracturing effect.
, the raw material storage bin is provided with solid block, granular or/and powder carbon dioxide energy gathering agent, solid carbon dioxide raw material such as dry ice is adopted, so that more raw material can be stored in the raw material storage bin.
, the lower end face of the raw material storage bin and the upper end face of the deflagration bin are welded at , the raw material storage bin and the deflagration bin are both cast by stainless steel, the upper side face of the raw material storage bin is provided with an openable filler bin , and when a storage bin switch valve is closed, the side face of the storage bin switch valve can be opened, so that the storage bin switch valve can be used for supplementing consumed deflagration raw materials.
, the storage bin switch valve comprises a valve rod and the lower end part which are connected with each other, the valve rod penetrates through the feeding channel and extends into the raw material storage bin, circles of protrusions are arranged at the connecting position of the valve rod and the lower end part, the outer diameter of each protrusion is equal to the inner diameter of the feeding channel, and a plurality of layers of sealing rings are arranged on the circumference of each protrusion.
, the valve stem diameter is smaller than the diameter of the feed channel.
, the impeller is a blade-shaped cylinder cast by metal material, both ends of the blade-shaped cylinder are arc-shaped, and the outer contour of the lower end part is matched with the blade-shaped cylinder.
, arranging a raw material grinding device in the raw material storage bin, wherein the raw material grinding device comprises a file with teeth in the raw material storage bin and a gear transmission device arranged at the top of the storage bin, and the file is connected with the gear transmission device through a transmission shaft.
, the igniter comprises an electric igniter in the deflagration cabin, and the electric igniter is connected with an external power supply and a spark controller through a lead.
, an air suction device is arranged in the air discharge device and is connected with the air discharge pipeline.
carbon dioxide deflagration pulse type pressurization rock breaking process method comprises the carbon dioxide deflagration pulse type pressurization rock breaking device, and the process method comprises the following steps:
, adding deflagration raw materials into the raw material storage bin and grinding into powder;
secondly, controlling a motor to rotate the impeller to open a storage bin switch valve and press the powdery deflagration raw material into the deflagration bin;
initiating detonation stamping of the detonation raw material through an ignition device, and flushing generated transient high-pressure gas into a blasted part through a pressure-resistant pipeline to realize th fracturing;
step four: opening an exhaust device to exhaust residual gas after deflagration, introducing the residual gas into the raw material storage bin through a high-pressure pump, maintaining the pressure in the bin, and closing the exhaust device;
and step five, opening the storage bin switch valve again, repeating the step three to the step four, and triggering the next times of detonation punching until the fracturing of the blasted part is completed.
Through the steps, supercritical carbon dioxide multi-pulse punching is adopted to replace single large-dose punching, the ideal fracturing effect of pulse type detonation punching can be achieved, the safety is high, the operation is easy, and the method can be suitable for laboratory simulation blasting, tunnel driving, foundation pit excavation, underground resource blasting mining and the like.
The pulse type pressurization rock breaking process method uses a detonation pressurization mode, achieves the purpose of fracturing by using transient high pressure provided by detonation, can provide the transient high pressure for multiple times by circulating detonation so as to achieve the purpose of higher pressure, and omits the operation mode of replacing a blasting barrel for multiple times in the prior art; the fracturing of underground rock above ground can be achieved by directly delivering high-pressure gas to the explosive.
The process method comprises the steps of realizing deflagration stamping by utilizing deflagration raw materials (dry ice powder energy collecting agents), realizing fracturing of rock bodies by utilizing multiple transient high pressures, realizing supplement of deflagration raw materials under the condition that a device is not disassembled by utilizing an impeller to push a storage bin switch valve , realizing recycling of gas after deflagration by utilizing an exhaust device, realizing powdering of the solid raw materials by utilizing a file in the storage bin, providing continuous high pressure for the storage bin by utilizing a carbon dioxide high-pressure pump, facilitating the powdered deflagration raw materials to enter the deflagration bin, and controlling ideal rotation, stop time and stop positions of the impeller by utilizing a motor.
Compared with the prior art, the carbon dioxide deflagration pulse type pressurization rock breaking device and the process method have the advantages that 1, the deflagration raw materials are utilized to generate transient high-pressure high-temperature gas after expansion and phase change to impact a blasted part to realize fracturing, single high-dose punching is replaced by multiple times of pulse punching to achieve better fracturing effect, the safety is high, the operation is easy, 2, a storage bin switch valve and an impeller are arranged in a matched mode, repeated feeding can be achieved quickly, manual feeding and frequent replacement of a blasting barrel are reduced, 3, high-temperature and high-pressure gas is conveyed through a pressure-resistant pipeline to achieve fracturing of remote and underground rocks, and 4, through the arrangement of an exhaust device and a high-pressure pump, residual high-pressure gas can be reasonably utilized, and appropriate pressure is provided for the principle storage bin.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an carbon dioxide deflagration pulse type pressurization rock breaking device;
FIG. 2 is a schematic diagram of a deflagration cabin side view structure of an carbon dioxide deflagration pulse type pressurization rock breaking device according to the invention;
FIG. 3 is a schematic diagram of the overall structure of another carbon dioxide deflagration pulse type pressure-increasing rock breaking device according to the present invention;
FIG. 4 is a schematic diagram of a raw material milling device of another detonation pulse type pressurized rock breaking device according to the present invention;
FIG. 5 is a schematic top view of the raw material milling apparatus of FIG. 4;
in the figure, the device comprises a raw material storage bin 1, a deflagration bin 2, a pressure-resistant pipeline 3, an exhaust pipeline 4, an exhaust device 5, a pipeline 6, a high-pressure pump 7, a pipeline II 8, a pipeline 9, a feeding channel 10, a storage bin switch valve , a lower end 11, a valve rod 12, a valve 13, a bulge 14, an impeller 15, a motor 16, a file 17, a transmission shaft 18 and a turntable.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiment is only a partial embodiment , rather than a complete embodiment, and all other embodiments obtained by those skilled in the art without any inventive step are within the scope of the present invention.
Example :
as shown in FIGS. 1 and 2, carbon dioxide deflagration pulse type pressurization rock breaking devices comprise a raw material storage bin 1 and a deflagration bin 2 arranged below the raw material storage bin 1, wherein the end of the deflagration bin 2 is opened and connected with a pressure-resistant pipeline 3 leading to a deflagration position, the middle part of the deflagration bin 2 is provided with an exhaust pipeline 4 and connected with an exhaust device 5, the exhaust device 5 is connected with a high-pressure pump 7 through a pipeline 6, and the high-pressure pump 7 is connected with the raw material storage bin 1 through a pipeline II 8;
the bottom surface of the raw material storage bin 1 is tightly welded with the top surface of the detonation bin 2, a feeding channel 9 penetrating through two bin walls is arranged, a storage bin switch valve 10 is arranged in the raw material storage bin 1, the lower end part 11 of the storage bin switch valve 10 penetrates through the feeding channel 9 and is located in the detonation bin 2, an impeller 14 is arranged in the detonation bin 2 corresponding to the lower end part 11, the impeller 14 is connected with a motor 15 through a rotating shaft, the motor 15 is arranged outside the detonation bin 2, and an ignition device (not shown in the figure) is further arranged in the detonation bin 2.
The carbon dioxide deflagration pulse type pressurization rock breaking device utilizes high-pressure high-temperature gas generated by transient state after the deflagration raw material expands and changes phase to impact the blasted part to realize fracturing.
The raw material storage bin 1 is used for storing deflagration raw materials, the circulating feeding and supplementing of the raw materials are achieved through control of a storage bin switch valve 10, deflagration is achieved in the deflagration bin 2 and high pressure is borne, after deflagration each time, residual gas enters the raw material storage bin 1 again through an exhaust device 5 and a high-pressure pump 7 to keep the pressure in the raw material storage bin 1, the raw materials are conveniently pressed into the deflagration bin 2 after a valve is opened, and if the high-pressure pump 7 provides continuous pressure of 20MPa for the raw material storage bin 1.
, the raw material storage bin 1 is provided with solid granular carbon dioxide energy gathering agent, solid carbon dioxide raw material such as dry ice is adopted, so that more raw material can be stored in the raw material storage bin 1.
, the raw material storage bin 1 and the deflagration bin 2 are both formed by casting pressure-resistant and high-temperature-resistant steel-iron alloy, the deflagration bin 2 is a cylindrical deflagration bin with the wall thickness of 50mm, the inner diameter of 500mm and the length of 1000mm, and the raw material storage bin 1 is a cubic storage bin with the wall thickness of 50 mm.
The upper side of the raw material storage bin 1 is also provided with an openable filler bin (not shown in the figure). when the storage bin switch valve 10 is closed, the side of the raw material storage bin 1 can be opened, and can be used for supplementing consumed deflagration raw materials.
, the storage bin switch valve 10 includes a valve rod 12 and the lower end 11 connected to each other, the valve rod 12 extends into the raw material storage bin 1 through the feeding channel 9, rings of protrusions 13 are provided at the connection of the valve rod 12 and the lower end 11, the outer diameter of the protrusions 13 is equal to the inner diameter of the feeding channel 9, and a plurality of layers of sealing rings are provided on the circumference of the protrusions 13 to ensure the sealing performance when the valve is closed.
, the diameter of the valve rod 12 is smaller than that of the feed channel 9, and when the valve is opened, the deflagration raw material can enter the deflagration chamber 2 through the gap between the two.
, the impeller 14 is a blade-shaped cylinder cast by pressure-resistant and high-temperature-resistant steel-iron alloy, both ends of the blade-shaped cylinder are arc-shaped, the outer contour of the lower part of the lower end part 11 is matched with the blade-shaped cylinder, when the impeller 14 rotates to a vertical state, the lower end part 11 upwards props against the feeding channel 9, namely, the valve is closed, when the impeller rotates and inclines, the lower end part 11 moves downwards to open the valve , and when the impeller 14 rotates to a horizontal state, the valve is opened to a maximum state.
, the igniter comprises an electric igniter in the deflagration cabin, and the electric igniter is connected with an external power supply and a spark controller through a lead.
, an air suction device is arranged in the air discharge device 5 and is connected with the air discharge pipeline 4.
This burst pulse type pressure boost rock breaking device of carbon dioxide utilizes carbon dioxide (dry ice) energy collecting agent to realize the detonation punching press, utilize transient state high pressure many times to realize the fracturing of rock body, utilize impeller 14 to promote the replenishment of detonation raw materials under the condition that storage storehouse ooff valve 10 realized not dismantling the device, utilize exhaust apparatus 5 to realize the recycling of residual gas behind the detonation, utilize carbon dioxide high-pressure pump 7 to provide lasting high pressure for the storage storehouse, the detonation raw materials of being convenient for get into the detonation storehouse, utilize motor 15 control impeller 14's intermittent type formula to rotate, stop time and stop position.
Example two:
as shown in FIGS. 3 and 4, the carbon dioxide deflagration pulse type pressurization rock breaking device comprises a raw material storage bin 1 and a deflagration bin 2 arranged below the raw material storage bin 1, wherein the end of the deflagration bin 2 is opened and connected with a pressure-resistant pipeline 3 leading to a deflagration position, the middle part of the deflagration bin 2 is provided with an exhaust pipeline 4 and is connected with an exhaust device 5, the exhaust device 5 is connected with a high-pressure pump 7 through a pipeline 6, the high-pressure pump 7 is connected with the raw material storage bin 1 through a pipeline II 8, the bottom surface of the raw material storage bin 1 is tightly welded with the top surface of the deflagration bin 2, and a feeding channel 9 penetrating through two bin walls is arranged;
the raw material storage bin 1 is further provided with a raw material grinding device, the raw material grinding device comprises a file 16 arranged in the raw material storage bin and a rotary table 18 arranged at the top of the storage bin, the file 16 is connected with the rotary table 18 through a transmission shaft 17, the file 16 is disc-shaped, a plurality of insections are arranged above the file 16, a storage bin switch valve is arranged below the file 16, the storage bin switch valve comprises a valve rod 12 and a lower end portion 11, the valve rod 12 is connected with the file 16 or the transmission shaft 17, the lower end portion 11 of the storage bin switch valve 10 penetrates through the feeding channel 9 and is located in the deflagration bin 2, an impeller 14 is arranged in the deflagration bin 2 corresponding to the lower end portion 11, the impeller 14 is connected with a motor 15 through a rotating shaft, the motor 15 is arranged outside the deflagration bin 2, and an ignition device (not shown in the drawings) is further arranged in the deflagration bin 2.
The rasp 16 can grind the massive solid raw materials in the raw material storage bin into powdery raw materials, and then put the powdery raw materials into the deflagration bin so as to improve the deflagration effect.
Gaps are reserved between the periphery of the file 16 and the inner wall of the raw material storage bin, so that powder can fall below the file 16 conveniently; the turntable 18 is connected with a gear transmission device to drive the file 16 to rotate so as to grind the raw materials on the file. Under the non-deflagration working state of the device, the raw materials can be ground into powder in advance.
The arrangement of other components in this embodiment is substantially the same as that in embodiment .
Example three:
A carbon dioxide deflagration pulse type pressurization rock breaking process method, which comprises the carbon dioxide deflagration pulse type pressurization rock breaking device in the embodiment or the embodiment II, the process method comprises the following steps:
, adding deflagration raw materials into the raw material storage bin and grinding into powder;
secondly, controlling a motor to rotate the impeller to open a storage bin switch valve and press the powdery deflagration raw material into the deflagration bin;
initiating detonation stamping of the detonation raw material through an ignition device, and flushing generated transient high-pressure gas into a blasted part through a pressure-resistant pipeline to realize th fracturing;
step four: opening an exhaust device to exhaust residual gas after deflagration, introducing the residual gas into the raw material storage bin through a high-pressure pump, maintaining the pressure in the bin, and closing the exhaust device;
and step five, opening the storage bin switch valve again, repeating the step three to the step four, and triggering the next times of detonation punching until the fracturing of the blasted part is completed.
Through the steps, supercritical carbon dioxide multi-pulse punching is adopted to replace single large-dose punching, the ideal fracturing effect of pulse type detonation punching can be achieved, the safety is high, the operation is easy, and the method can be suitable for laboratory simulation blasting, tunnel driving, foundation pit excavation, underground resource blasting mining and the like.
The pulse type pressurization rock breaking process method uses a detonation pressurization mode, achieves the purpose of fracturing by using transient high pressure provided by detonation, can provide the transient high pressure for multiple times by circulating detonation so as to achieve the purpose of higher pressure, and omits the operation mode of replacing a blasting barrel for multiple times in the prior art; the fracturing of underground rock above ground can be achieved by directly delivering high-pressure gas to the explosive.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
- The carbon dioxide deflagration pulse type pressure boosting rock breaking device is characterized by comprising a raw material storage bin and a deflagration bin arranged below the raw material storage bin, wherein the end of the deflagration bin is opened and connected with a pressure-resistant pipeline leading to a bursting position, and an exhaust pipeline is arranged in the middle of the deflagration bin and connected to an exhaust device;the raw material storage bin is abutted with the deflagration bin and is provided with a feeding channel penetrating through the wall of the bin, a storage bin switch valve is arranged in the raw material storage bin, the lower end part of the storage bin switch valve penetrates through the feeding channel and is located in the deflagration bin, an impeller is arranged in the deflagration bin corresponding to the lower end part and is connected with a motor through a rotating shaft, the motor is arranged outside the deflagration bin, and an ignition device is further arranged in the deflagration bin.
- 2. The carbon dioxide deflagration pulse type pressurization rock breaking device is characterized in that solid block-shaped, granular-shaped or/and powdery carbon dioxide energy-gathering agents are arranged in the raw material storage bin.
- 3. The carbon dioxide deflagration pulse type pressurization rock breaking device of claim 1, wherein a lower end face of the raw material storage bin and an upper end face of the deflagration bin are welded at , the raw material storage bin and the deflagration bin are both cast from stainless steel, and an openable filler bin is arranged on an upper side face of the raw material storage bin.
- 4. The carbon dioxide deflagration pulse type pressurization rock breaking device of claim 1, wherein the storage bin switch valve comprises a valve rod and the lower end portion which are connected with each other, the valve rod extends into the raw material storage bin through the feed channel, a -circle bulge is arranged at the joint of the valve rod and the lower end portion, the outer diameter of the bulge is equal to the inner diameter of the feed channel, and a plurality of layers of sealing rings are arranged on the periphery of the bulge.
- 5. The carbon dioxide deflagration pulsed pressurized rock breaking device of claim 4, wherein the valve stem diameter is less than the diameter of the feed channel.
- 6. The carbon dioxide deflagration pulse type pressurization rock breaking device of claim 1, wherein the impeller is a blade-shaped cylinder cast from a metal material, and both ends of the blade-shaped cylinder are arc-shaped; the outer contour of the lower end part is matched with the blade-shaped cylinder.
- 7. The carbon dioxide deflagration pulse type pressurization rock breaking device as claimed in claim 1, wherein a raw material grinding device is further arranged in the raw material storage bin; the raw material grinding device comprises a file with teeth arranged in the raw material storage bin and a gear transmission device arranged at the top of the storage bin; the file is connected with the gear transmission device through a transmission shaft.
- 8. The carbon dioxide deflagration pulse type pressurization rock breaking device of claim 1, characterized in that, ignition includes the electric sparking head that sets up in the deflagration storehouse, external power source and ignition controller are connected through the wire to the electric sparking head.
- 9. The carbon dioxide deflagration pulse type pressurization rock breaking device is characterized in that an air suction device is arranged in the exhaust device and is connected with the exhaust pipeline.
- 10, A process method containing the carbon dioxide deflagration pulse type pressurization rock breaking device of claim 1, which is characterized in that the process method comprises the following steps:, adding deflagration raw materials into the raw material storage bin and grinding into powder;secondly, controlling a motor to rotate the impeller to open a storage bin switch valve and press the powdery deflagration raw material into the deflagration bin;initiating detonation stamping of the detonation raw material through an ignition device, and flushing generated transient high-pressure gas into a blasted part through a pressure-resistant pipeline to realize th fracturing;step four: opening an exhaust device to exhaust residual gas after deflagration, introducing the residual gas into the raw material storage bin through a high-pressure pump, maintaining the pressure in the bin, and closing the exhaust device;and step five, opening the storage bin switch valve again, repeating the step three to the step four, and triggering the next times of detonation punching until the fracturing of the blasted part is completed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911021742.1A CN110735637B (en) | 2019-10-25 | 2019-10-25 | Carbon dioxide deflagration pulse type pressurization rock breaking device and process method |
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| CN201911021742.1A CN110735637B (en) | 2019-10-25 | 2019-10-25 | Carbon dioxide deflagration pulse type pressurization rock breaking device and process method |
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| CN110735637B CN110735637B (en) | 2020-12-01 |
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Cited By (3)
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